Here's a better version: #!/bin/sh mdconfig -a -t swap -s 128m bsdlabel -w md0 auto newfs_msdos -F 16 -b 8192 /dev/md0a mount_msdosfs /dev/md0a /mnt/thumb/ cp -R /usr/src/bin/ /mnt/thumb/ umount /mnt/thumb mdconfig -d -u 0 If I run it repeatedly, I get a different set of copy failures (or no failures) each time. Mike "Silby" Silbersack